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Two Compatible Poly...
Two Compatible Polymer Donors Enabling Ternary Organic Solar Cells with a Small Nonradiative Energy Loss and Broad Composition Tolerance
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- Tang, Yumin (author)
- Southern Univ Sci & Technol SUSTech, Peoples R China
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- Yu, Jianwei (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Sun, Huiliang (author)
- Southern Univ Sci & Technol SUSTech, Peoples R China
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- Wu, Ziang (author)
- Southern Univ Sci & Technol SUSTech, Peoples R China; Korea Univ, South Korea
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- Koh, Chang Woo (author)
- Korea Univ, South Korea
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- Wu, Xia (author)
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), No. 1088, Xueyuan Road, Shenzhen, Guangdong, 518055 China
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- Liu, Bin (author)
- Southern Univ Sci & Technol SUSTech, Peoples R China
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- Wang, Junwei (author)
- Southern Univ Sci & Technol SUSTech, Peoples R China
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- Liao, Qiaogan (author)
- Southern Univ Sci & Technol SUSTech, Peoples R China
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- Li, Yongchun (author)
- Southern Univ Sci & Technol SUSTech, Peoples R China
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- Guo, Han (author)
- Southern Univ Sci & Technol SUSTech, Peoples R China
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- Woo, Han Young (author)
- Korea Univ, South Korea
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- Gao, Feng (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Guo, Xugang (author)
- Southern Univ Sci & Technol SUSTech, Peoples R China
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(creator_code:org_t)
- 2020-09-20
- 2020
- English.
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In: Solar RRL. - : Wiley-VCH Verlagsgesellschaft. - 2367-198X. ; 4:11
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- High-performance nonfullerene ternary organic solar cells (OSCs) with two polymer donors are less frequently reported because of the limited numbers of efficient polymer donors with good compatibility. Herein, a wide-bandgap polymer P1 with a deep-lying highest occupied molecular orbital (HOMO) level is incorporated as the third component into the benchmark PM6:Y6 binary system to fabricate ternary OSCs. The introduction of P1 not only leads to extended absorption coverage and forms a cascade-like energy level alignment but also shows excellent compatibility with PM6, resulting in a favorable morphology in the ternary blend. More importantly, P1 possesses a deeper HOMO level (-5.6 eV) than most well-known donor polymers, which enables resulting ternary OSCs with an improved open-circuit voltage. As a result, the optimized ternary OSCs with 40 wt% P1 in donors achieve a power conversion efficiency (PCE) of 16.2% with a small nonradiative recombination loss of 0.23 eV, which is among the highest values of ternary OSCs based on two polymer donors. In addition, the ternary OSCs show a broad composition tolerance with a high PCE of over 14% throughout the whole blend ratios. These results provide an effective approach to fabricate efficient ternary OSCs by synergizing two wide-bandgap polymer donors.
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Keyword
- compatibility; composition tolerance; energy loss; ternary organic solar cells; wide-bandgap polymer donors
Publication and Content Type
- ref (subject category)
- art (subject category)
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Solar RRL
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To the university's database
- By the author/editor
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Tang, Yumin
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Yu, Jianwei
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Sun, Huiliang
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Wu, Ziang
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Koh, Chang Woo
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Wu, Xia
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show more...
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Liu, Bin
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Wang, Junwei
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Liao, Qiaogan
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Li, Yongchun
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Guo, Han
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Woo, Han Young
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Gao, Feng
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Guo, Xugang
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Polymer Chemistr ...
- Articles in the publication
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Solar RRL
- By the university
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Linköping University